Ball-bearing axle



F. J. COCHRAN. BAL'L BEARING AXLE.

APPLICATIW FILED DEC.22\1919.

Patented June EL @2L 2 SHEETS-SHEET l.

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UNITED -STATES Parleur omen.

mimmo J. oceanen, or xoom' vnmrou, rumors.

musulmanes uns.

mesma.

To all whom it may concern.'

Be it 4known' that I, Fnnnrnro J. COCHRAN, a'citizn of the UnitedStates, residing at Mount Vernon, in thecqunty of Jefferson and State ofIllinois, have invented certain new and useful Improvements inBall-Bearing Axles, of which the following is a specilication. l Y AThis invention relates to new and useful improvements in ball bearingaxles for cars of any character, such as street cars, railway cars,mining cars, etc., and is primarily designed as an improvement over theconstruction for vwhich a atent was "granted to me on January 2, 191 No.1,210,422. l

One object of my invention is to provide an inproved-ball-bearing axleor `ou1inal 'for the wheels in which there is a roller or ball bearingengagement between all contacting parts, thus reducinV friction to theminlmum' and which will` obviate all danger of the wheels of the cartjucks leaving the rails` on account of lateral displacement of thewheels. -A further object of m Iinvention is to 1&0 vide a ball bearingax e which will a low thcar wheels to turn independently of each ot er.v

A still further object of my invention is to eliminate all unnecessarparts or elements and improve upon my ormer construction generally. f

With the foregoing and' other objects in view that will appear as thenature' of'the.

invention is better understood, the same ,consists in the novel featuresof construction, combination and arrangement of parts illustrated in thedrawings and more particularly pointed out'in the appended claims.

In the accompanying drawings, which are for illustrative purposes onlyand are therefore not drawn to scale Figure 1 is a side elevation,partly in section, illustrating my invention.

Fig. 2 is an end View. Fig. 3 is a vertical longitudinal section of oneen'd of the axle and associated parts, on an enlarged scale, the wheelshown' in dotted lines.

Figs. 4, 5 and 6' are detail perspectivl Speeication o2 Letters Intent.

Application mea December e2, 1ere. semi no. 343,441.

sleeve 4 is arranged a continuous circular series of bearing rollers 6,which extend longitudnally'of the sleeve and shaft and work.

or travel around the former.y The cylindrical enlargements 5 of thesleeve are of somewhat eater length than that of the bearing ro lers, asshown, and project somewhat beyond the outer ends of the hubs 7 of thewheels 8, which are pressed or keyed to the i enlargements in the usualway. l

Thehollow cylindrical sleeve 4 comprises two correspondm at their inneren s with the bearing flanges 9j and 10 which workv against each other,as shown. The inner ends of the two sections of the sleeve 4 aredetachably connected together by the couplin A, consisting of the upperand lower coup ing members c and d o Selm-circular form in crosssection, said coupling members comprising the relatively narrowintermediate portions 1l which fit over the outer edges of the annularbearing flanges 9 and 10 and are formed, at opposite sides with theinwardly extending flanges 12 which enga e or interlock with vthe outellfaces of saidg bearing flanges. The two members of the coupling aresecured together by the, bolts and nuts 13 and 14, respectively. Throughthe use of the above construction,

the car wheels are. allowed to turn independf entl of each other. y

. T 1e annular s ace 15between the shaftor axle 1 Iand t e sleeve 4 isfilled with' grease which may be replenished at any time necessarthrough a transverse opening 16 in the s eeve, normally closed by a plug17 held in place by a cotter in 18 inserted through the outer end 1'9 ofE annular boss 20 cast on the V the sleeve around said opening 16.-

A hollow cylindrical cap 21 preferably of sections a and b formedv heplug and an Y uter surface of cnst steel, fits` on each end of the shaftor axle 1 with itsinner end projecting slightly into the outer end yofthe adjacent enlargement 5 of the sleeve. The inner end` of each cap isprovidedwith an annular flange 22 which surrounds the same and projectsbearing; bells 2l and serves to somewhat over or overlaps the outer endet the adjacent enlargement of the sleeve, seid annuler flange forming ecirculer 4tie-ll rece 23 in which is arranged e continuons eircum lerseries of bearing bells llt will loe noted that in .my presentconstruction, l eliminate the oil cup ever each series el bearing bells52st, shown in my Pntent lllec LlOflQQ end simply replace stmelvfitli. ethreaded plug 25, the purpose et 'which will be apparent 'lhe outer ofeach een 2l' may or mey not be closed., desired and may be cit any shapeor form required to .lit any trnclr now in use or to be used in orderthat ,my inch proved bell bearing exile may, be inter changed with theold style axle. llt will also be noted that the shaft or erde l isprefer ehly not fastened anywhere end the cape 21 held in plm-e by thetrane ot the cer7 eltliough in sonne nistances, il' found expedr Itent:the oeps tney be fastened to the erle by y n single holt.

ln carrying out my inventiona e, thin instel ring 26 is plecedin eachcan 2l over the .held the letter platee. A felt washer 2". ileced overeach ring 26 and around the cuter ends el the cylindrieel enlargementsof the sleeve Il nets e guard to exclude the dust end et the tiifneretain the lubricating oil* 'een fresher 27 ispleced e metal ring f 'iit fastened to the corresponding i y' the instelling screws 29 andserves te hold bell end dust guard in place,

The ttve series or" bell be e above inentiened ere to telre cere ol sidemotions ned byv the cnr in swaying beck end espeeielly in 'rounding;lcurves,

flor? While the Weight of the cnr berne by the bottoni ot'the axleercnnd which the beeringg rollers@ Worlr, thus reducing* frictionbetween the stationary und moveble parte to the minimum. ttention isalso invited to the lect that by rigidly mounting the cnr Wheels on theouter revoluble member or sleeve., all liability of the car trucksleaving ily understood Without requiring e more enm tended explenntionlferious changes 1n the torni, proportions nud telnor.' details ofconstruction may be resorted to Without departing from the prin.n

ci les or sacrificing any ofthe advantages o this invention es definedin the appended teleline ller/ing described my invention, what l clairees new sind desire to secure by Letters lletent, is :M

l.. A bell end roller bearing axle of the character specified.,comprising an inner ste.- tionery shari-ftg e hollow sleeve revoluhlymounted thereon and provided et opposite ends with c lindricelenlargements, a circuler series o. bearing rollers arranged in theenlargement et eech end olf the sleeve, ereund seid shaft, hollow cupsfreely mounted on opposite ends of seid shalt end held in position bythe truck traine, said caps provided et their inner ends with annularbell reces and bearing balls erre nged ,in said. .bell reces against theends of the sleeve.

2. l bell endvroller bearing eirlelv of the churecter'specied,comprising en inner stetionery shaft, e hollow sleeve revolubly monntedthereong4 hollow oeps mounted on opposite ends o' seid lshells, seidcaps preI vided in. their inner ends, with inner :ind outer steppedrecesses, the former constitutH ing ball races, bearing bells arranged.in seid ball race forming recesses against the ends of the sleeve, eballretainernnd dust guerd arranged -in the outer recess of each cap., thedust guards surrounding and fitting over the ends et the sleeve andkeeper rings fastened to the inner ends of the caps and servingto retainthe bell retainers end dust guards inV place. r

ln testimony whereof l elllen my signature.

d. @@Clil'titl.

